Double disk harrow.



' P113. NIESZ DOUBLE DISK HARROW. APPLICATION FILED AUG 11, 1910.

Patented 001;. 13, 1914.

3 SHEBTSSHEET 1.

P. B. NIESZ. DOUBLE DISK HARROW. APPLICATION FILED AUG 11,1910.

Patented 0@1.13,1914.

F. B. NIBSZ.

DOUBLE DISK HARROW.

APPLICATION FILED AUG 11, 1910.

Patented 0013. 13, 1914.

3 SHEETSSHEET 3.

wwne/oow JJW jTo all it may concern:

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{"Be It known that I, FRANK B.

Nmsz, "a

. citizen oft-her United States, vresidingat Canton, in the county of Stark and State of, Ohio, have invented certain new and useful Improvements in- Double DiskHarrows, of which the following is a specification, reference being had therein to the ac- :f. companying drawing. 10

.a double disk harrow, which comprises a front section having two pivoted disk shafts, a rear section having two pivoted disk shafts. and a longitudinally arranged reach- My invention relates to improvements in ondraftbar which connectsthe rear section to the front section.

One object of the present improvement is to provide a universal connection between the front end. of the draft-or reach her and the first section, wherebythe two sections have independent horizontal and vertical movements which permit each section to; freely "and independently swing up and, vdown to follow certain inequalities of the surface, and furthermore serves as a swivel ito'jperniit the harrow to freely -make short ble disk harrow.

turnsat'the ends of the. rows.

Another object of this improvement is to provide thevertically pivoted rear disk .or shaft sections and the rear portion of {the draft bar respectively with sliding loops and tongues to relieve the lateral strain on the vertical pivots, due to the rearward rocking tendency of the rear pivoted disk sections, which rear rocking tendency, is

caused by the draft-engagement; of the disk with the soil. i The present improvement involves other novel features and objects, which will be specifically described and pointed out here inafter. v

' In the accompanying drawingsFigure 1 is a perspective view of my improved doun through the front disk section' lat. a

sect

' 1'; outside of the bars 1:2 and 15-. Fig;

i4 is a ert-ical section through. the center ofi the -front section, showing the ad usting mechanism; r v s p I Referring xnow to the drawings, :A, 1s

' truck doesjQ-not involve the present improve ment, it will not be specifically described.

Specification or Letters Patent. Application filed August 11.1910; Serial no. 576,708;

Fig. 2 is atop plan view ofliny improved harrow. Fig. 3 is a vertical racemes Oct. 13,1914.

.Any suitable form of truck maybe used. Attached-to the rear end of the draft bar 1, is

a transverse draft bar 3. v i

f Two forward. disk sections 4 and 5, carry in any suitable manner harrow-disks 6. The

outer ends of these disk frames at and 5 are vertically pivoted to the outer ends of the transverse draft bar 3, which permits their inner ends to' be swung batkward and forward to set them at'any desired angle, asshown in Fig. 2, or in a line as shown in Fig. 1. This adjustment is accomplished through the medium of levers T and S, which are connected with the inner swinging ends of the disk sectionsby means of links 9 and 10. The form of pivotal connection here shown between the outer ends of the disk sections a and 5 and the transverse draft 'bar 3, comprises verticalsockets 11 carried at the outer ends of the transverse draft bar 3; the curved members '12 which have their upper and forward ends journaled in the sockets and their lower and rear ends connectedwith the disk shafts ll; and the rods 15 which have their forward ends verti cally jmirnaled in the sockets l6 and their rear ends .bent and swiveled at the points 17 in the top bars 18' of the front pivoted harrow sections. Brace rods 19 connect the lower ends of the sockets llwith the longitudinal draft bar 1.

Referring now to the rear harrow section this draft bar. and have their forward endsconnected to the front end of the central portion of the draft bar. and their rear ends are connected to the bearing blocks 22. As shown the bearing blocks 22 and the pivotal bolts 21 are at the centers of the disk sections. These rear "disk sections. are adjusted to any desired angle, as shown in Fig. 2, or in a line as shown in Fig. l, by means of the levers 26 and links 2T.

One of the present improvements pertains to the manner, of connecting the front end. of the draft bar 24 to the front barrow section. *The improvement involves, any

suitable universal form of connection'C, 0r

anyform of connection which will permit the front and rear barrow sections to have otally connected with the member 29, at the' rear end of the front draft bar 1. This head 28 is provided with horizontal openings 30, through which and the front end of the rear draft bar 24:, a horizontal pivotal bolt 31 passes. The vertically pivoted head 28 permits an independent horizontal swinging movement, and the horizontal pivotal bolt 31 permits an independent vertical movement ofthe front and rear harrow sections. I do not limit myself to this kind of joint. Any form of joint which is intended to, and does permit an independent horizontal and vertical movement of the front and rear harrow sections, will come within the broad purview of this part of my improvement.

Attention is directed to the plurality of horizontal openings 30, the object of which is to accomplish a vertical adjustment of the point of connection between the draft bar 24: and the front harrow section.

It will be not-iced that the draft of the rear disk sections 1), b, is accomplished principally from their top through the medium of the vertical pivotal bolts :21 and journal blocks 22, so that the rear rocking tendency of the rear disk sections by reason of the draft thereof with the soil comes on these bolts and blocks. To largely relieve the strain of this rear draft upon the blocks and bolts, I arrange a sliding loop and tongue connection between the tops of the disk sections and the rear draft bar. This arrangement comprises loops 32, which depend from the brace portions 25 of the rear draft bar 24:, and tonguesi33, which project forward from the tops of the disk sections, and slide through the loops. These tongues are located below the rear bar 23 of the draft bar, and the loop and tongue engage at a point in front of the disk sections, which provides a considerable leverage as between the tops of the disk sections, and the points of engagement of the loopsand tongues. The tongues and loops will engage at any angular adjustmentof the disk sections, and will receive the rear rocking strain due to the rear draft caused by the engagement of the disk with the soil.

In a harrow of this type the heavy cutting work is performed by the front section by reason of it working upon the uncut soil, whereas the work of the rear section is lighter because it works on the soil that has been previously worked by the front section. In order to cause the frontsection to .cut into the unworked soil means are provlded for making it heavier than the rear section,

The idea of this improvement may be accomplished in many ways, the manner here shown consists in providing the front section with the driver's seat 3%, by means of which the driver weights the front sect-ion, thus making a corresponding heavy front and light rear section.

It will also be observed, that the front disk sections are pivoted at' their outer por tions, and substantially in the line of draft, whereas the rear disk sections are pivoted above their tops and at a point substantially equi-distant between the ends of their tops.

Having thus. described my invention, what I claim and desire to secure by Letters Patent is:

1. In a double disk harrow, the combination with a front harrow section having horizontally swinging disk sections, of a rear harrow section having a central longitudinally extending draft bar. the front end of the draft bar flexibly connected with the front harrow section, rear disk-sections having vertical pivotal connections between the tops of the sections and the said draft bar,

adjusting members connecting the rear sections and the draft bar, the draft bar and disk-sections having respectively loops and tongues separate and independent of the adjusting members, the tongues slidably passing through and engaging the loops.

2. In a double disk harrow, the combina tion with a front harrow section having horizontally swinging disk sections. of a rear harrow section having a central longitudinally extending draft bar, the front end of the draft bar flexibly connected with the front harrow section, rear disk-sections-lmving vertical pivotal connections between the tops of the section and the said draftbar, adjusting members connecting the rear sections and the draft bar, the draft bar and disk sections having respecti ely loops and tongues separate and independent of the adjusting members slidably passing through and engaging the loops.

In testimony whereof I'hereunto affix my signature in the presence of two witnesses.

FRANK B. NEE SZ.

Witnesses:

H. N. MCABEE, RAY L. Bar. 

